AuxXxilium/linux_dsm_epyc7002
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af5c6df704
linux_dsm_epyc7002/drivers/net/ethernet
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Mugunthan V N af5c6df704 drivers: net: cpsw: irq not disabled in cpsw isr in particular sequence 
In CPSW NAPI, after processing all interrupts IRQ is enabled and then book
keeping irq_enabled is updated. In random cases when a packet is transmitted
or received between processing packets and IRQ enabled, then just after
enabled IRQ and before irq_enabled is updated, ISR is called so IRQs are
not disabled as irq_enabled is still false and CPU gets locked in CPSW ISR.

By changing the sequence as update the irq_enabled and then enable IRQ
fixes the issue. This issue is not captured always as it is a timing issue
whether Tx or Rx IRQ is invoked between packet processing and enable IRQ.

Cc: Sebastian Siewior <bigeasy@linutronix.de>
Signed-off-by: Mugunthan V N <mugunthanvnm@ti.com>
Acked-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-05-02 16:52:04 -04:00
..
3com Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next 2013-05-01 14:08:52 -07:00
8390 Char / Misc driver update for 3.10-rc1 2013-04-29 11:18:34 -07:00
adaptec net: vlan: add protocol argument to packet tagging functions 2013-04-19 14:46:06 -04:00
adi drivers:net: Remove unnecessary OOM messages after netdev_alloc_skb 2013-03-09 16:09:19 -05:00
aeroflex drivers:net: dma_alloc_coherent: use __GFP_ZERO instead of memset(, 0) 2013-03-17 12:50:24 -04:00
alteon net: vlan: add protocol argument to packet tagging functions 2013-04-19 14:46:06 -04:00
amd Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next 2013-05-01 14:08:52 -07:00
apple drivers:net: Remove dma_alloc_coherent OOM messages 2013-03-15 08:56:58 -04:00
atheros Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next 2013-05-01 14:08:52 -07:00
broadcom Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next 2013-05-01 14:08:52 -07:00
brocade net: vlan: add protocol argument to packet tagging functions 2013-04-19 14:46:06 -04:00
cadence net/macb: fix error return code in macb_probe() 2013-04-15 14:09:37 -04:00
calxeda net: calxedaxgmac: fix condition in xgmac_set_features() 2013-04-25 03:50:17 -04:00
chelsio cxgb4vf: Support CPL_SGE_EGR_UPDATEs encapsulated in a CPL_FW4_MSG 2013-04-29 15:24:44 -04:00
cirrus cirrus: cs89x0: remove two obsolete Kconfig macros 2013-03-29 15:40:24 -04:00
cisco net: vlan: add protocol argument to packet tagging functions 2013-04-19 14:46:06 -04:00
davicom Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2013-04-01 13:36:50 -04:00
dec Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2013-03-20 12:46:26 -04:00
dlink drivers:net: Remove unnecessary OOM messages after netdev_alloc_skb 2013-03-09 16:09:19 -05:00
emulex be2net: Fix to fail probe if MSI-X enable fails for a VF 2013-05-02 16:43:34 -04:00
faraday net: ftgmac100: Use module_platform_driver() 2013-03-18 13:02:37 -04:00
freescale Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2013-04-30 03:55:20 -04:00
fujitsu Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next 2013-05-01 14:08:52 -07:00
hp
i825xx drivers:net: Remove unnecessary OOM messages after netdev_alloc_skb 2013-03-09 16:09:19 -05:00
ibm Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next 2013-05-01 14:08:52 -07:00
icplus drivers/net/ethernet/icplus: remove depends on CONFIG_EXPERIMENTAL 2013-01-22 12:01:33 -08:00
intel ixgbe: add mac type to the version in ethtool_regs 2013-04-25 20:38:28 -07:00
marvell Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2013-04-22 20:32:51 -04:00
mellanox mlx4_en: fix a build error on 32bit arches 2013-04-30 19:00:25 -04:00
micrel ks8851: Remove unneeded PM_OPS definitions 2013-04-16 16:30:51 -04:00
microchip net: ethernet: enc28j60: use spi_get_drvdata() and spi_set_drvdata() 2013-04-07 16:48:19 -04:00
myricom net: vlan: add protocol argument to packet tagging functions 2013-04-19 14:46:06 -04:00
natsemi net: vlan: add protocol argument to packet tagging functions 2013-04-19 14:46:06 -04:00
neterion net: vlan: add protocol argument to packet tagging functions 2013-04-19 14:46:06 -04:00
nuvoton drivers:net: Remove dma_alloc_coherent OOM messages 2013-03-15 08:56:58 -04:00
nvidia net: vlan: add protocol argument to packet tagging functions 2013-04-19 14:46:06 -04:00
nxp net/nxp/lpc_eth: Drop ifdef CONFIG_OF_NET 2013-04-02 16:43:56 -04:00
octeon ethtool: fix drvinfo strings set in drivers 2013-01-06 21:06:31 -08:00
oki-semi pch_gbe: minor: report the actual error on MTU change 2013-04-16 16:43:35 -04:00
packetengines Driver core patches for 3.9-rc1 2013-02-21 12:05:51 -08:00
pasemi drivers:net: dma_alloc_coherent: use __GFP_ZERO instead of memset(, 0) 2013-03-17 12:50:24 -04:00
qlogic qlcnic: Update version to 5.2.42 2013-04-24 19:34:06 -04:00
rdc drivers:net: Remove unnecessary OOM messages after netdev_alloc_skb 2013-03-09 16:09:19 -05:00
realtek Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2013-04-30 03:55:20 -04:00
renesas sh_eth: use random MAC address if no valid one supplied 2013-04-30 15:37:08 -04:00
seeq drivers:net: Remove unnecessary OOM messages after netdev_alloc_skb 2013-03-09 16:09:19 -05:00
sfc Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next 2013-05-01 14:08:52 -07:00
sgi drivers:net: dma_alloc_coherent: use __GFP_ZERO instead of memset(, 0) 2013-03-17 12:50:24 -04:00
silan Driver core patches for 3.9-rc1 2013-02-21 12:05:51 -08:00
sis sis900: check for DMA map errors 2013-04-15 14:11:37 -04:00
smsc ARM: arm-soc non-critical fixes for 3.10 2013-05-02 08:56:55 -07:00
stmicro Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2013-04-22 20:32:51 -04:00
sun net: add ETH_P_802_3_MIN 2013-03-28 01:20:42 -04:00
tehuti net: vlan: add protocol argument to packet tagging functions 2013-04-19 14:46:06 -04:00
ti drivers: net: cpsw: irq not disabled in cpsw isr in particular sequence 2013-05-02 16:52:04 -04:00
tile net: remove unnecessary NET_ADDR_RANDOM "bitclean" 2013-01-03 22:37:36 -08:00
toshiba net: vlan: rename NETIF_F_HW_VLAN_* feature flags to NETIF_F_HW_VLAN_CTAG_* 2013-04-19 14:45:26 -04:00
tundra drivers:net: dma_alloc_coherent: use __GFP_ZERO instead of memset(, 0) 2013-03-17 12:50:24 -04:00
via net: vlan: add protocol argument to packet tagging functions 2013-04-19 14:46:06 -04:00
wiznet net: ethernet: wiznet: add CONFIG_PM_SLEEP to suspend/resume functions 2013-03-26 12:47:17 -04:00
xilinx net: vlan: rename NETIF_F_HW_VLAN_* feature flags to NETIF_F_HW_VLAN_CTAG_* 2013-04-19 14:45:26 -04:00
xircom Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next 2013-05-01 14:08:52 -07:00
xscale net: phy: remove flags argument from phy_{attach, connect, connect_direct} 2013-01-14 15:11:50 -05:00
dnet.c net: phy: remove flags argument from phy_{attach, connect, connect_direct} 2013-01-14 15:11:50 -05:00
dnet.h
ethoc.c ethoc: Cleanup driver format 2013-01-29 14:07:05 -05:00
fealnx.c
jme.c net: vlan: add protocol argument to packet tagging functions 2013-04-19 14:46:06 -04:00
jme.h
Kconfig drivers/net: delete old 8 bit ISA Racal ni5010 support. 2013-01-22 10:39:52 -05:00
korina.c ethtool: fix drvinfo strings set in drivers 2013-01-06 21:06:31 -08:00
lantiq_etop.c lantiq_etop: use free_netdev(netdev) instead of kfree() 2013-03-21 11:50:10 -04:00
Makefile drivers/net: delete old 8 bit ISA Racal ni5010 support. 2013-01-22 10:39:52 -05:00
netx-eth.c drivers:net: Remove unnecessary OOM messages after netdev_alloc_skb 2013-03-09 16:09:19 -05:00
s6gmac.c s6gmac: fix error return code in s6gmac_probe() 2013-03-22 10:23:42 -04:00